Mill-feeding device.



PATENTED JULY 4, 1905.

A. E. SABLE. MILL FEEDING DEVICE.

APPLICATION FILED JAN. 31. 1905,

2 SHEETS-SHEET l.

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Witnesses No. 793,683. PATENTED JULY 4, 1905. A. E. SABLE.

MILL FEEDING DEVICE.

APPLIOATION FILED JAN. Bl. 1905,

2 SHEETS-SHEET 2.

Witnesses Rt'comegs UNITED STATES Patented July 4, 190 5.

PATENT OFFICE.

MILL-FEEDING DEVICE.

SPECIFICATION forming part of Letters Patent No. 793,683, dated July 4,1905.

Application filed January 31 1905. Serial No. 243,524.

[9 all whom it may concern:

Be it known that 1, ANDREW EDGAR SA- BLE, a citizen of the UnitedStates, residing at Fishing Creek, in the county of Columbia and Stateof Pennsylvania, have invented a new and useful Mill-Feeding Device, ofwhich the following is a specification.

This invention relates to feeding devices for that class of millsemploying an upper and a nether millstone; and it has for its objecttosimplify and improve the construction and operation of this class ofdevices.

With these and other ends in view, which will readily appear as thenature of. the invention is better understood, the same consists in theimproved construction and novel arrangement and combination. of parts,which will be hereinafter fully described and particularly pointed outin the claims.

In the accompanying drawings has been illustrated a simple and preferredform of embodiment of the invention, it being, however, understood thatno limitation is necessarily made to the precise structural detailstherein exhibited, but that changes, alterations,.and modifications maybe resorted to within the scope of the invention and without departingfrom the spirit or sacrificing the efiiciency of the same.

In said drawings, Figure 1 is a vertical sectional view showing theinvention applied in position for operation. Fig. 2 is a transversesectional view taken at approximately right angles to Fig. 1. Fig. 3 isa plan view of the central portion of the runner-stone and relatedparts. Fig. 4 is a perspective view showing the ring or spiderconstituting a part of the invention detached from the millstone. Fig.5,is a perspective detailview showing one of the beveled or wedge-shapedblocks which are used in connection with the spider detached and ininverted position. Figs. 6

and 7 are detail views showing separatinggrates of various dimensions.

Corresponding parts in the several figures are indicated by likecharacters of reference. The upper or runner stone 1 is supported in theusual manner by means of the crossbar or rynd 2 upon the spindle 3,which projects through the lower or bed stone, a portion of which isshown at 4.

5 designates a spider consisting of a ring provided withoutwardly-extending radiate ing arms 6, said ring being seated at theupper edge of the eye 7 of the runner-stone, which is recessed, as shownat 8, for the reception of said ring and the arms radiating therefrom.-Upon the inner side of the ring or spider 5 are formed a plurality ofequidistant projections 9, tapering upwardly and producing a pluralityof recesses 10, which,

by reason of the tapering shape of the lugs or.

projections 9, have downwardly-converging ends or edges. Seated in saidrecesses are wedge blocks 1 1, having downwardly tapered ends 12,adapted for engagement with the lugs or projections 9, between which thesaid wedge -blocks may thus be securely seated. The inner faces of thewedge-blocks 11 are curved eccentrically, asshown at 13, so that whenplaced in position, as in Fig. 3, the said wedge-blocks will cooperateto form an internal ratchet within the spider 5.

Suitably supported above the upper millstone is a shoe 14, having adischarge-shoe 15. Said chute, which is preferably constructed of woodwith a lining 16 of galvanized iron or other suitable material, isprovided directly above the eye of the millstone with an aperture 17,forminga seatfor a separating-grate 18, consisting of a frame,preferably rectangular, and having a plurality of longitudinaly-disposed bars 19, which may be spaced at various distances apart, aswill be seen by reference to Figs. 6 and 7, where grates havingdifferently-spaced bars have been shown. These grates are to be made ofsteel and are to be more or less highly magnetized for the purpose ofremoving from the grain passing between the gratebars metallicparticlessuch as nails, screws, and the likewhich may have becomeaccidentally mixed with the grain and which would be liable to workgreat injury to the millstones if permitted to pass therebetween. Thesegrates or searchers, as they may be lugs 21, between which a feed-funnel22 is supported upon gimbals 23. The spout 24 of the feed-funnel isextended downwardly to rest against one side of the cross-bar or rynd 2,so as to be carried around with the runnerstone, and thus be causedto'distribute the material fed evenly around the spindle.

Suitably connected with the under side of the shoe 14 is a brackethavinga downwardlyextending member 25, which is disposed in contact withthe inner eccentric faces of the wedge-blocks 1-1. Therear end of thebracket has a pin 26, which is connected by a traction-spring 27 with afixed point of the framework 28.

The operation of this invention and its advantages will be readilyunderstood from the foregoing description, taken in connection with thedrawings hereto annexed, by those skilled in the art to which itappertains. Grain is supplied in any suitable manner to the shoe 14,which latter is constantly agitated, as the bracket member 25is inconstant engagement with the wedge-blocks 11, connected with the spider.The latter being connected with the runner stone is con stantly rotated,and the bracket member 25 will be alternately moved in the direction ofthe center of the eye by said wedge-blocks and be retracted by theaction of the spring 27, thus setting up a shaking movement, which iseffective in feeding the grain over the grate or searcher. Metallicparticles will adhere to the latter and may be subsequently removed. Thegrain will pass between the grate-bars and into the funnel, whereby itis fed between the millstones and refuse matter, such as straws andempty ears, will be carried off over the spout 15.

The wedge-blocks 11 being mounted detachably in the spider may bereadily removed and new ones substituted when desired.

The shoe 14 may be supported for reciprocation by means of links 30 fromsome suitable overhead support (not shown) or in any other convenientand appropriate manner.

Having thus described the invention, what is claimed is 1. In a deviceof the class described, .a spring-actuated shoesupported forreciprocation said shoe having an aperture, a magnetized steel grateseated in said aperture and having longitudinally-disposed gratebars,and a longitudinally-disposed overflowchute connected with the shoe.

2. In a deviceof the class described, a re ciprocatory spring-actuatedshoe, a magnetized steel grate in the latter, and a funnel supported bygimbals beneath said grate.

3. In a device of the class described, a shoe supported forreciprocation, a tension-spring to move said shoe in one direction, anda device directly connected with the runner-stone for moving said shoein the opposite direction.

4.'In a device of the class described, the combination with arunner-stone, of a spider seated therein, and wedge-blocks connectedwith said spider.

5. In a device of the class described, the combination with arunner-stone, of a spider seated therein, said spider including a ringprovided on its inner side withupwardlytapering lugs, and wedge-blockshaving beveled ends engaging and supported detachable upon said lugs.

6. In a device of the class described, the combination with arunner-stone, of a ring seated in the eye thereof and having beveledprojections upon its inner side, and wedgeblocks detachably supportedupon said projections and having eccentrically-curved inner faces.

7. In a device of the class described, the combination with arunner-stone, of a spider seated therein, wedge-blocks connecteddetachably with said spider and having eccentrically-curved inner faces,a shoe supported for reciprocation and having a bracket member dependingin contact with the eccentric faces of the wedge-blocks, a springactuating said shoe in the direction of said wedge-blocks, and a funnelor spout connected with the shoe by means of gimbals, and restingagainst the rynd of the runnerstone.

In testimony that I claim the foregoing as my own I have hereto aflixedmy signature in the presence of two witnesses.

7 ANDREW EDGAR SABLE.

Witnesses:

ZERBAN O. HESS, A. F. CREVELING.

